ATI RN
Endocrine System Questions Questions
Question 1 of 5
Which of these is not an endocrine property?
Correct Answer: C
Rationale: Rapid-acting effects typify neural responses (e.g., milliseconds), not endocrine, where hormones travel via blood (e.g., insulin), causing slow, cyclic changes (e.g., menstrual cycle) via chemical signals. Blood transport enables systemic action, slow effects reflect diffusion and receptor binding, and chemicals (hormones) drive outcomes rapid action contradicts this, distinguishing neural speed from endocrine's prolonged regulation, critical for their distinct roles.
Question 2 of 5
The secretions from which of these glands differs between males and females?
Correct Answer: C
Rationale: Gonadal glands (testes, ovaries) differ testes secrete testosterone, ovaries estrogen/progesterone, shaping sex-specific traits. Adrenal (cortisol, aldosterone), parathyroid (PTH), and pancreas (insulin) secretions are sex-agnostic, serving universal functions (stress, calcium, glucose). Gonadal hormone divergence distinguishes them, critical for reproductive dimorphism, unlike consistent outputs.
Question 3 of 5
Most endocrine organs are prodded into action by other hormones; this type of stimulus is called:
Correct Answer: A
Rationale: Hormonal stimuli, like TSH stimulating thyroid hormone release, drive most endocrine activity. Humoral stimuli (e.g., blood calcium for PTH) and neural stimuli (e.g., adrenal medulla) exist, but hormonal is predominant. 'Receptor-mediated' isn't a stimulus type. This prevalence distinguishes endocrine regulation, key to hormonal cascades, contrasting with chemical or nerve triggers.
Question 4 of 5
The secretions from which of these glands differs between males and females?
Correct Answer: C
Rationale: Gonadal glands (testes, ovaries) differ: testes secrete testosterone, ovaries estrogens/progesterone, defining sex-specific traits. Adrenal, parathyroid, and pancreas secretions (e.g., cortisol, PTH, insulin) are similar across sexes. Gonadal variation distinguishes it, critical for reproductive endocrinology, contrasting with universal hormones.
Question 5 of 5
What stimulates the release of PTH from the parathyroid gland?
Correct Answer: D
Rationale: Low blood calcium triggers parathyroid hormone (PTH) release to raise levels via bone resorption and kidney action. High calcium inhibits, TSH targets thyroid, calcitonin (thyroid-made) lowers calcium. Low calcium stimulus distinguishes PTH regulation, critical for calcium homeostasis, contrasting with inhibitory or unrelated signals.